how to lower MAGI in 2026 to prevent going over the cliff for ACA

Hello,

I am a on a pension and my COLA mid 2026 will send me over the cliff for the 400% of poverty level of my MAGI by about $600 thus costing me a 670% premium increase, yes that is correct.  

I have read whereas I could contribute more traditional IRA funds, but I am very confused as to how you remove then add back the contribution from AGI, etc.  I know that the 400% for 2 people is $84,600, so i would want to be below that final number.  

I would appreciate any suggestions on how I should proceed down that avenue.  Thanks!